nospam wrote:

> devices with motors, in particular, synchronous motors, whose speed is
> a function of line frequency, will have problems, sometimes serious.
> the speed will be different and it can overheat, possibly burn out.

It deserves to be stated that nospam is actually correct in what he has
been stating, and that Joerg Lorenz is a moron who is wasting our time.

While the morons are just guessing, what nospam said is correct in the
main, which, surprisingly, shows that he knows what he's talking about.

Fleshing out what nospam correctly succinctly summarized,
*What happens if you connect a 60 Hertz motor to a 50 Hertz mains*
<https://electricaloutlet.org/frequency>
The motor turns 17% slower
The internal current goes up by 17%
The power (watt) goes down with 17 %
The mechanical cooling is less, because of 17% less turns

As nospam correctly alluded to, problems arise the other way also.
*THINGS TO CONSIDER WHEN OPERATING 50 Hz EQUIPMENT AT 60 Hz?*
<https://powerofengineers.wordpress.com/2020/08/23/why-50hz-and-60hz/>
"A 50 Hz motor operating on 60 Hz will attempt to rotate at a 20%
increase in speed. The load will become 1.23 (1.2 x 1.2 x 1.2)
or 1.73 times greater (173%) than on the original frequency.
Redesigning a motor for that much of a horsepower increase
is not possible."
In summary, I deplore the negative value that the morons like Joerg Lorenz
imparted to this thread, while I commend the positive value from nospam.
--
I am fair to everyone because my response is based on what value they add.